单选题
In the twentieth century new drugs have
markedly
improved health throughout the world.
A、
recently
B、
consistently
C、
supposedly
D、
noticeably
【正确答案】
D
【答案解析】
markedly意为“显著地，明显地”。A选项：最近地。B选项：持续地，连贯地。C选项：据认为，据推测，一般看来。D选项：明显地。
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